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2 Sheets-Sheet 1.

(No Model.)

H. H. FEPEL.

SEWING MACHINE TRIMMER.

Patented Feb. 3, 1885..

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(No Model.) 2 SheetsSheet 2. H. H. PEPEL.

SEWING MACHINE TRIMMER. No. 311,734. Patented Peb.3,1885.

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HENRY H. FEFEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF THREE.FOURTHS TO HENRY BROOKS, OF SAME PLACE.

SEWING-MACHINE TRIMMER.

SPECIFICATION forming part of Letters Patent No. 311,734, dated February3, 1885.

(No model.)

To all whom, it may concern:

Be it known that I, HENRY H. FEFEL, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inSewing-Machine Trimmers; and I do hereby declare the following to be afull, clear, and exact description of the invention, reference being hadto the accompanying drawings, which form part of this specification, inwhich Figure 1 is a longitudinal vertical section, and Fig. 2 atransverse vertical section, of my invention. Fig. 3 is a detail view ofthe nippingedges. Fig. 4 isavertical section showin g a modification ofthe nipper-actuatingdevice.

My invention has relation to that class of devices or attachments knownas sewing-machine trimmers, and my improvements have for their object toprovide new means for separating or dividing fabric as a substitute forthe cutting, shearing, and abrading mechanisms heretofore employed forthat purpose.

My invention consists in the special con struction and combinations ofparts hereinafter specifically claimed, and constituting a trimmer, andin the combination of such trimmer with the feeding and stitch-formingmechanism 0 of a'sewing-machine, the essential features of said trimmer,which distinguish it from all devices heretofore employed for suchpurpose and used in combination with a sewing-machine, being twocuttingjaws, each of which 55 has a sharp edge, both of said edges beingdirectly opposed one to the other and lying in a plane parallel with thefeed of the machine, the arrangement of parts being such that inoperation both edges out toward each other- 40 one downwardly and theother upwardlywithout passing each other, substantially as hereinafterset forth.

Referring to the accompanying drawings,

jaw is attached to the bed-piece B by screws" (1, and the nipping edgeor bit 01 projects up wardly through a slot, 0, in the cloth-plate A,inside of the feed-slot.

Eis another jaw, fulcrumed atein a'bracket, F, secured on thecloth-plate A by screws f f, which pass through slots f in said bracketand enter threaded openings in said cloth-plate. By these means saidbracket and its jaw can be adjusted toward and from the presser-foot 6of the machine. The outer extremity of the jaw E has a nipping-edgealigned with the edge of the stationary jaw, both edges being parallelwith the long side of the pressenfoot and in the plane of movement ofthe feed. 6 Said edges flare at the end where the fabric is fed betweenthem, so as to facilitate the entrance of such fabric to their bite.Motion should be communicated to the movablejaw, so that it and thefixed jaw shall come into biting contact, their edges just touching eachother while the stitch is being formed on the machine, and shall beseparated or apart while the feeding of the fabric is being effected.This may be accomplished in many ways, one 7 of which is illustrated inthe drawings.

H is a lever, fulcrumed at h in the bracket F, and having its short armprojected beneath the rear end of the long arm of the jaw E. There isalso provided a spring, I, having its s ends secured, respectively, tothe head K of the machine and to the rear end of jaw E, so as to keepsaid end in constant contact with the end oflevcr H, and to lift or openthe biting end of the jaw when the short end of the le 8 ver descends.The rear end of lever H is se cured by a ball-and-socket joint oruniversal coupling, L, to a connectingrod, M, springing from or attachedto an eccentric-strap, N, which encircles an eccentric on the main shaft0 O of the machine. The parts are so adjusted that while the needle-baris descending the jaw E is approaching, and its nipping-edge comesintocontact with the edge of the jaw D, and while the needle is out of thefabric and 5 the feed of the latter is proceeding the edges of the jawsare apart.

The operation of the nippers does not require extended description, asit need only be pointed out that fabric coming between the sharp edges,each of which operates so that the wear is evenly distributed betweenboth; hence each edge will last at least twice as long as if the workwere done by a single edge.

- Again. as the edges do not pass one another,

as in shear trimmers, they do not wear one another, as such sheartrimmers do, and hence dullness is occasioned solely by the resistanceof the fabric trimmed, and not by wear of one jaw or edge upon another.The cut of the edges is direct and made throughout wholly at onetime-that is, the edges do not gradually approach, one part of the edgesfirst and the other parts afterward. as shears do; but

all parts of the opposing cuttingedges are constantlyequidistant-thatis, each point of one edgeis always at the same distance from theopposite point 'of the other edge that every other point of saidfirst-named edge is to the opposed point of its antagonistic edge.

I am aware that'shears, chisels or choppers, andabrading-jaws haveheretofore been used as trimming attachments for sewing-machines, andthat nippers have been employed for cutting wire, &c.; hence I- do notlay claim to such, but limit my claims specifically to the constructionand combinations hereinafter specified. I

As a modification of my invention, both the jaws may be made movable andthe rear ends of their actuatinglevers be connected by a toggle-joint,as shown in Fig. 4 of thedra-wings.

What I claim as my invention is as follows: 1. The combination, withthefeeding and stitch-forming mechanism of a sewing-machine, of atrimming device comprising two jaws having sharp opposing parallel edgesin a plane parallel with the line of feed of the machine, said jawsbeing constructed and relatively arranged as described, so that boththeir edges act simultaneously throughout their length, both edgescutting at the same time, with mechanism, substantially as described,for imparting motion to one or to both jaws from the working parts ofthe sewing-machine, substantially as shown and described.

2. The combination, with the feeding and stitch-forming mechanism of asewing-ma chine, of a trimming attachment comprising two jaws havingsharp edges directly opposed to and parallel with one another and in aplane parallel with the line of feed, said edges being equidistant atall of their cutting-points and flaring apart at their feeding end, andmechanism for imparting motion to one or to both of said jaws from theworking parts of the machine, substantially as shown and de scribed.

3. The combination, with the feeding and stitch-forming mechanism of asewing-machine, of a trimming attachment comprising two cutting-jawswith sharp opposing edges in a plane parallel with the line of the feedand parallel with each other the cutting parts of said edges beingequidistant for their entire extent, one of said jaws being locatedmainly below the cloth-plate of the machine, but having its edgeprojectingupwardly through a slot in the latter, the other jaw beingfulcrumed in a bracket mounted on the said plate, and having connectingmechanism for the working parts of the machine, whereby one jaw iscaused to approach the other with a movement of uniform length for allpoints of 7 its edge, substantially as shown and described.

4. The combination, with asewing-machine, of a fixed lower jaw, D,secured to the bedpiece B, and having its edge projected through a slotin the cloth-plate, a movable jaw, E, fulcru med in an adjustablebracket, F,mounted on said cloth-plate, a lever, H, also fulerumedinsaid bracket, and connected, by a rod, M, and strap N, with aneccentric on the main shaft of the machine, and a spring, I, for holding the adjacent ends of said movable jaw and lever in contact, saidparts being constructed and arranged for operation substantially asshown and described.

In testimony that I claim the foregoing I have hereunto set my hand this21th dayof May, 1884.

HENRY H. FE FEL.

\Vitnesscs:

ANDREW ZANE, J r., M. D. CoNNoLLY.

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